如果恒星的内核非常巨大(大约相当于六一八个太阳质量)，则很可能在恒星的气体即将燃尽时，气体由于受到引力作用而向内坍塌，强行进人内核。

• If the core of the star is so massive (approximately 6-8 solar masses; one solar mass being equal to the sun's mass) then it is most likely that when the star's gases are almost consumed those gases will collapse inward,forced into the core by the gravitational force laid upon them.